Place it in your project folder. In that case you can directly refer the image. But the best thing is place all images in a seperate folder. May be in a new folder name images. In that case you have to refer it as images/image_name. Not only that you can place your image anywhere in your PC, but have to refer it with the full path name. It's not best choice, because if you wants to move the project into another place, you have to make some changes in your code too.